U.S. warns Merck about factory

From Times Wire Services

The Food and Drug Administration has ordered Merck & Co. to correct numerous manufacturing deficiencies at its main vaccine plant, the latest in a string of setbacks for the drug maker.

The agency released a warning letter sent to Merck that states FDA inspectors determined manufacturing rules were not being followed at the plant in West Point, Pa., just outside Philadelphia.

The plant, which recalled two vaccines in December over sterility problems, makes a number of children's vaccines and four for adults.

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